(1)In subsection (5) of section 3 of the Finance Act 1972 (payment of excess credit for input tax against output tax by Commissioners) after the words " the amount of the excess shall" there shall be inserted the words " subject to subsection (6A) below " , and after subsection (6) of that section there shall be inserted the following subsection—
“(6A)Where at the end of any period an amount is due under subsection (5) above to a taxable person who has failed to submit returns or to pay tax for any earlier period as required by this Part of this Act, the Commissioners may withhold payment of that amount until he has complied with that requirement.”
(2)In subsection (8)(b) of that section (power to enable taxable persons to count tax on the supply or importation of goods as their input tax) for the words " supply to him, or paid by him on the importation, of goods " there shall be substituted the words " supply to him of goods or services or paid by him on the importation of goods ".